The Setscrew, cataloged under National Stock Number 5305-01-346-4252, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-346-4252 |
| Primary Part Number | 12549139 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Extended Washer Thickness | 0.168 INCHES NOMINAL IN |
| Point Diameter | 0.432 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Head Height | 0.330 INCHES NOMINAL IN |
| Point Length | 0.220 INCHES NOMINAL IN |
| Fastener Length | 1.210 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Extended Washer Diameter | 1.060 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN |
| Thread Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Point Style | DOG |
| Width Between Flats | 0.570 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1035 OR STEEL COMP 1536 OR STEEL COMP 1037 OR STEEL COMP 1039 OR STEEL COMP 1040 OR STEEL COMP 1541 OR STEEL COMP 1043 OR STEEL COMP 1044 OR STEEL COMP 1045 OR STEEL COMP 1137 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12549139 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5305-01-346-4252 is a Setscrew, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-346-4252 has 1 manufacturer part number on file: 12549139 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12549139: Extended Washer Thickness: 0.168 INCHES NOMINAL IN; Point Diameter: 0.432 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Head Height: 0.330 INCHES NOMINAL IN; Point Length: 0.220 INCHES NOMINAL IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.